New yoek



(No Model.)

J. W.-KENYON.

PRESSURE REGULATOR.

Patented Oct. 27, 1885.

ATES

*A'rhur rrrcir JOHN W. KENYON, OF BROOKLYN, ASSIGNOR TO GEORGE H. CLARKE, OF PORT WASHINGTON, NEW YORK.

PRESSURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No 329,177, dated October 27, 1885. Application filed June 27, 1885. Serial No. 169,931. (No model.)

To aZZ whom it may concern: I

Be it known that I, J OHN W. KENYON, a subject of the Queen of Great Britain, residing at Brooklyn, county of Kings, State of New York, have invented certain new and useful Improvements in Pressure Regulators, of which the following is a specification.

This invention has for its object the construction of a simple, cheap, efficient, and sensitive pressure-regulating apparatus, reliable in its operation and adapted to act as a damperregulator, or to govern and control fluids and gases under pressure by actuating a valve or analogous device arranged to determine the amount or force of the power or medium employed to produce or maintain the pressure of the gas or fluid.

The invention relates to the diaphragm class of regulators; audit consists of two elastic and flexible diaphragms arranged on the opposite sides of a pressure-chamber, combined with a system of floating levers, so as to increase or multiply the movement of the diaphragm to any desired extent in such a manner as to greatly add to the power and efficiency of this class of regulators. It also embraces a simple means for counteracting or preventing the bad effects on regulators of pressures that are subject to sudden or extensive fluctuations, as will be fully described by reference to the accompanying drawings, in which 7 Figurel is afront elevation of myimproved pressure-regulator, partly in section, shown applied to regulate the pressure of steam in boilers by controlling the furnacedamper. Fig. 2 is a side elevation of the same. Fig. 3 is a full front elevation of the apparatus, showing it applied to another purpose; and Fig. 4 is a section on the line as :r, Fig. 1, drawn to a larger scale.

The body or power-receiving part of the apparatus consists of an annular casting, a, provided with a foot or base, a, by which the ap paratus is secured in working position. The sides of the annular piece a are closed by the two similar covers, I) and 0, having cylindrical cavities, into which are fitted the pistons or followers d and e, and these pistons or followers d and e are provided with short studs d and e on their outer sides, arranged to project short distance through central holes in the covers I) and 0. Between the covers 6 and c and the annular piece care placed the diaphragmsf and g, of flexible and elastic materia1as ihdia-rubber-the whole being secured together by means of the bolts and nuts h. The annular piece a is provided with an orifice or hole, a, opening into the space between the diaphragms f and g, and in this hole a? is attached the pipe i, for connecting the inclosed chamber between the diaphragms f and g with the reservoir or vessel containing the fluid or gas whose pressure it is desired to maintain constant. To allow freedom of movement to the elastic diaphragms f and g, the faces of the flanges of the covers 19 andcare cut away from the clamping-surface, where the holding-boltsh pass through them, to the cylindrical cavities, and the edges of said cylindrical cavities are rounded, so that as the diaphragms are forced outward against the pistons d and eby internal pressure they freely stretch or expand around the rounded edges of the cavities without injury to them.

To impart motion from the pistons d and e to the device or means employed to regulate the power or medium which cause-s the compression of the gas or fluid acting in the in closed chamber between the diaphragms f and g, two levers, j and k, are pivoted at j and 7c .in lugs projecting from the covers b and c, and the ends of the rods d and e of the pistons d and e bear against their sides. To the upper ends of the levers j and 7c are pivoted a system of levers and links, Zm Z or, arranged on the lazytongs principle, the juncture of the links Z and m being connected to the regulating device. A

spring,n,is placed between the levers j and k, so as to draw their upper ends toward one another and hold the pistons d and e in contact with the diaphragms f and g against the pressure in the chamber,and this spring a is, by means vice, or by changing the proportions of the limbs of the levers, the increase of the movement of the point 0 over the movement of the pistons may be multiplied to any desired extent; but I find that the number of levers and links and their working proportions, as shown, give all the movement necessary to regulate pressure in almost all practical applications of the device; and it will also be observed that by the application of the two diaphragms, working in opposite directions, the governing or regulating power of the apparatus is vastly increased over other diaphragm regulators heretofore made, and that by reason of the peculiar arrangement of the multiplying-levers, the power being applied to the working joints in opposite directions, and the whole constituting a system of floating levers, the least possible amountof power is lost in overcoming friction.

In regulating apparatus of this description it is sometimes desirable to retard the flow of the fluid'or gas into the pressure-chamber of the regulator, especially where the apparatus is employed to regulate pressures subject to sudden and extensive fluctuations,which often makes it difficult to adjust the controlling device, 'asthe sudden fluctuations of pressure cause the controlling device to be moved beyond the point required to effect the regula" the flow of the gas or fluid to or from the pressure-chamber. This perforated constricting disk or Washer 10, I propose to apply to the apparatus when it is set up in working position, selecting one having such a sized hole as will retard the fluid or gas sufficiently to prevent sudden movements of the diaphragm, thus counteracting the efiec'ts of sudden or extensive fluctuations in the pressure to be governed.

I am aware that a stop-cock or valve placed in the pipe i can be used to control the flow of the fluid or gas to or from the pressurechamber; but such method of accomplishing the desired result is objectionable,as such valve is liable to be tampered with, and my improved application of constricting disks is a cheaper and better way,and when once fixed .in place and adjusted to give the desired result a permanent and means is had.

It will be understoodthat the apparatus, so far as described, is complete as a regulating positive controlling orgoverning device, and that its various applications will be readily'suggested to those havingoccasion to use the same, it being only necessary to-connect the pipe 2' or orifice a to the fluid or gas apparatus in which it is desired to maintain a constant pressure and join the end 0 of the lever system to the device adapted to govern the power or medium employed to produce the pressure.

In the application to damper-regulators, as shown at Figs. 1 and 2, the piper is connected to the steam-space of the boiler, and the end 0 of the lever system to the damper q in the flue g by means of the cord or chain 'r,which passes over the guide-pulley s. This guide-pulley is fitted in a hanger, s, pivoted in a bracketpiece, it, said pivoted connection being directly over the center of the apparatus and the edge of the pulley s, so that the part of the cord or chain 7' between the pulley s and the joint 0 will be always vertical, whatever position the pulley is caused to assume by the direction given to the other part of the cord or chain which extends to the damper. The apparatus and guide-pulley are preferably connected to a board, a, so that the whole device may be readily set up in working position.

The opening a may be made through any part ofthe body a, but is shown on the upper side of the pressure-chamber, as being the most convenient location to preventthe escape of the fluid from the chamber, it being desirable, with diaphragm pressure-regulators, to keep the pressure-chamber full of a suitable fluid.

The baseor foot a of the apparatus may be arranged on the bottom, as'shown at Fig. 3,

instead of'at thesi'de, as'shown at Figs. 1 and 2, and in this view, Fig. 3, the controllingend 0 of the apparatus is shown connected, by means of the link 2;, to the arm w of the balanced or check valve in the pipe through which the steam or other power medium passes, and which may be actuating a steam-pump whose work or pressure it is desired to keep uniform, said pump being connected to the pressure jchai'nber of the apparatus through the pipe As a substitute 'fo'rthe spring n, or in addition thereto, a dead-weight, y, maybe used, connected to the upper ends of the levers j k by the links y y, as shown by dotted lines,

Fig. 3; or the actuated weighted damper or IOO valve may be depended upon to'draw or assist I in drawing the levers together.

Having now described my invention, what I claim,and desireto secure by Letters Patent, 1s

1. In a pressure-regulator, the combination, with two elastic'diaphragms forming the opposite sides of a pressure-chamber, of levers pivoteda't their free ends to a system of floating levers, and actuated by the elastic diaphragms at points near their fixed fulcrums, substantially as'and for the purpose set'forth.

2. In a pressure-regulator, in'combination,

an annular body-piece, two hollow covers, two elastic 'diaphragms secured, between the body and the'covers, two followers or pistons located in the covers with stems or rods projecting therethrough, and a compound system of levers actuated by the projecting rods of the pistons, substantially as and for the purpose set forth.

3. The combination ,with the pressure-chamber of a pressure-regulator, of a detachable perforated washer or disk located in the inletopening of said pressure-chamber, substantially as and for the purpose set forth.

4. In a pressure-regulator, in combination, the annular body a, the covers I) and 0, the pistonsd and 6, provided with the rods (1 and e, the elastic diaphragms f and g,the levers j and 7c, and spring at, substantially as set forth.

5. In a pressure-regulator, in combination,

a pressure-chamber having two elastic dia-,

phragms, and followers arranged and actuated by the pressure, so as to move in opposite directions, the levers j and is, pivoted to the pressure-chamber and actuated near their fulcrums by the followers of the diaphragrns, the spring a, connected to the two levers j and k,so as to draw them together and oppose the outward motion of the diaphragins, the diagonal levers Z and m, and the links Z and m, having a common connecting-joint, 0, for connection to the governing device to which the apparatus is applied, substantially as set forth.

In testimony whereof I have hereunto set my hand, at New York, county and State of New York, this 23d day of June, 1885.

JOHN W. KENYON.

Witnesses:

)ALFRED SHEDLooK,

H. D. WILLIAMS. 

